Commercial water heatersENERGY STAR certified
Velocity Boiler Works PHX650C
650 kBtu/h gas tankless water heater.
Input rate
650 kBtu/h
Storage
6 gal
Thermal efficiency
0.98
Fuel
Gas, Propane
Of 207 certified gas tankless commercial water heaters, 9 have a higher thermal efficiency than the PHX650C (0.98).
- Maker
- Velocity Boiler Works
- Model
- PHX650C
- Type
- Gas Tankless
- Fuel
- Gas, Propane
- Storage
- 6 gal
- Thermal efficiency
- 0.98
- Input rate
- 650 kBtu/h
- Vent
- Direct Vent
- On the market since
- Aug 2025
- ENERGY STAR certified
- 31 Jul 2025
Source: ENERGY STAR certified commercial water heaters dataset, US EPA, record 4480975, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the PHX650C
Certified commercial water heaters from other makers, same color class, within 20% of its speed.
| Model | Type | Fuel | Storage | Input rate |
|---|---|---|---|---|
| Lochinvar AWH0650L SERIES 1** | Gas Tankless | Propane | 6 gal | 650 kBtu/h |
| Lochinvar AWH0650N SERIES 1** | Gas Tankless | Gas | 6 gal | 650 kBtu/h |
| HTP ELX-650FVWH | Gas Tankless | Gas, Propane | 5 gal | 650 kBtu/h |
| A. O. Smith PWH0650NP* | Gas Tankless | Gas, Propane | 6 gal | 650 kBtu/h |
| Laars NT2V0650 | Gas Tankless | Gas | 6 gal | 650 kBtu/h |
| Bradford White BNT2V0650 | Gas Tankless | Gas | 6 gal | 650 kBtu/h |
Velocity Boiler Works
More Velocity Boiler Works commercial water heaters
| Model | Type | Fuel | Storage | Input rate |
|---|---|---|---|---|
| PHXW400 | Gas Tankless | Gas, Propane | 4 gal | 399 kBtu/h |
| PHXW500 | Gas Tankless | Gas, Propane | 5 gal | 500 kBtu/h |
| PHXW650 | Gas Tankless | Gas, Propane | 6 gal | 650 kBtu/h |
| PHXW800 | Gas Tankless | Gas, Propane | 7 gal | 800 kBtu/h |
| PHXW1000L | Gas Tankless | Gas, Propane | 9 gal | 999 kBtu/h |
| PHX1000C-O | Gas Tankless | Gas, Propane | 9 gal | 999 kBtu/h |
| PHX800C-O | Gas Tankless | Gas, Propane | 7 gal | 800 kBtu/h |
| PHX400C-O | Gas Tankless | Gas, Propane | 4 gal | 399 kBtu/h |